Finding the Fourth Proportional to 609,444,847.30, 914,167,270.95 and 425,778,837.70
Calculator
Solution
The fourth proportional to 609,444,847.30, 914,167,270.95 and 425,778,837.70 is: 638,668,256.55
Step by Step Solution
- Step 1: Write the proportion equation
609,444,847.30 : 914,167,270.95 = 425,778,837.70 : x - Step 2: Convert to fraction form
609,444,847.30/914,167,270.95 = 425,778,837.70/x - Step 3: Cross multiply
609,444,847.30x = 914,167,270.95 × 425,778,837.70 - Step 4: Simplify right side
609,444,847.30x = 389,233,078,088,472,000 - Step 5: Solve for x
x = 389,233,078,088,472,000/609,444,847.30 - Step 6: Final answer
x = 638,668,256.55
Related Problems
Find fourth proportional to 304,722,423.65, 457,083,635.48 and 212,889,418.85
Half scale
Find fourth proportional to 1,218,889,694.60, 1,828,334,541.90 and 851,557,675.40
Double scale
Find fourth proportional to 609,444,848.30, 914,167,272.45 and 425,778,838.70
Similar ratio
Find fourth proportional to 914,167,270.95, 1,371,250,906.43 and 638,668,256.55
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.